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Development of the Baylor‐Nikkiso Centrifugal Pump with a Purging System for Circulatory Support
Author(s) -
Naito Kozo,
Miyazoe Yuki,
Aizawa Takeshi,
Mizuguchi Kazumi,
Tasai Kimitaka,
Ohara Yasuhisa,
Orime Yukihiko,
Glueck Julie,
Takatani Setsuo,
Noon George P.,
Nosé Yukihiko
Publication year - 1993
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1993.tb00604.x
Subject(s) - centrifugal pump , impeller , seal (emblem) , ventricular assist device , thrombus , circulatory system , materials science , mechanical engineering , engineering , surgery , medicine , cardiology , art , heart failure , visual arts
The Baylor‐Nikkiso centrifugal pump is a magnetically coupled system with a V‐ring seal separating the pump and the actuator chamber. To prevent thrombus formation behind the impeller and to extend the life of the pump to 2 weeks of continuous operation, we incorporated a purging chamber behind the V‐ring seal. An external pump connected to this purging chamber infused fluid at a constant rate to wash the shaft‐seal area. To evaluate the effectiveness of the purging system, we have carried out biventricular bypass experiments using calves. The purging system was successful in reducing the level of thrombus formation after 2 weeks of operation. The results of these studies confirmed that the Baylor‐Nikkiso centrifugal pump with this purging system is suitable for at least 2 weeks of continuous operation as a circulatory support system.